Junichiro Hirasawa
18Patents
5h-index
25Co-inventors
62Inventor score
Filing activity: Nov 1, 1999 → Jan 5, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6426039B2 | Ferritic stainless steel | Chemistry; Metallurgy | 5 | Expired |
| US6521056B2 | Ferritic stainless steel sheet having superior workability at room temperatures and mechanical characteristics at high temperatures | Chemistry; Metallurgy | 5 | Expired |
| US8357247B2 | Martensitic stainless steel for disk brakes | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US7341690B2 | Soft Cr-containing steel | Chemistry; Metallurgy | 5 | Expired |
| US10272513B2 | Ferritic stainless steel sheet for plasma arc welding and welding method therefor | Chemistry; Metallurgy | 5 | Active |
| US8911574B2 | Method for manufacturing high-Si cold rolled steel sheet having excellent chemical conversion properties | Chemistry; Metallurgy | 3 | Active |
| US8852361B2 | Stainless steel sheet with excellent heat and corrosion resistances for brake disk | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US6168756A | Highly corrosion-resistant chromium-containing steel with excellent oxidation resistance and intergranular corrosion resistance | Chemistry; Metallurgy | 3 | Expired |
| US6740174B2 | Soft Cr-containing steel | Chemistry; Metallurgy | 2 | Expired |
| US7572407B2 | Martensitic stainless steel sheet and method for making the same | Chemistry; Metallurgy | 1 | Expired |
| US7294212B2 | High-strength stainless steel material in the form of a wheel rim and method for manufacturing the same | Chemistry; Metallurgy | 1 | Expired |
| US8668789B2 | Method for manufacturing of high strength cold rolled steel sheet of excellent phosphatability | Chemistry; Metallurgy | 1 | Active |
| US9090952B2 | High-strength cold-rolled steel sheet and method for producing the same | Chemistry; Metallurgy | 1 | Active |
| US8657971B2 | Brake disk excellent in temper softening resistance and toughness | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7429302B2 | Stainless steel sheet for welded structural components and method for making the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6737018B2 | Corrosion-resistant chromium steel for architectural and civil engineering structural elements | Chemistry; Metallurgy | 0 | Expired |
| US10988853B2 | Stainless steel sheet including Ni and O-containing coating on surface and method for producing stainless steel sheet | Performing Operations; Transporting | 0 | Active |
| USRE44709E1 | Soft Cr-containing steel | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.